Lets talk about something other than CMI or BMI:eek:
The Pic’s are of a 2 1/2 ton Bryant heat pump up-flow; blower above the A-coil. The local return air filter below the unit had the filter matted over and was dislodged from its filter grill. I decided to have a look at the A-coil fins as it had a easy excess panel and sure enough the coil was matted over as indicated in the Pic. I make my determination about the coil depending on basically how much lint is on the blower motor and blower wheel.
I also check the heat strips with a amp meter as indicated. This furnace had three strips; each one was drawing 21 amps. These strips were visible once the blower motor cover was removed.
Yes for you hard heads I still consider this a visual inspection. How else can you determine if an electrical furnace is performing as intended with all strips in working order:D
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Absolutely fabulously day David at my age every day is a good day:) I wake up every morning excited just to know I am still breathing;-)
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Do you also do the same amount of inspecting when the unit is in a damp crawlspace with no room to sit up and rust eeking out of the panel covers and covering the screw heads?
Sorry Bruce I would roll over in my grave if I ever found a unit in a damp crawl space; just not done here; but yes if I did find one I would give it the same attention that is what I am being paid for the BIG BUCKS:)
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I would like to clarify that I do not pull the covers on all A-coils that I inspect.
I have to have a reason lack of air flow, furnace blower and wheel matted over. As an inspector you should be able to tell if someone has been changing the filters on a regular basis plus some A-coil boxes are not easily observable as you would have to cut the sheet metal. These do not get observed by me.
I will remove the cover just to be able to say in my report yes the A-coil is matted over and the unit will not perform as intended. I will not make that statement unless I have actually observed the A-coil. Do not want some contractor saying I did not know what I was talking about.
I do not make the statement very often Needs further evaluation